Guest Stars Brooke Nevin as Kat Nick D'Agosto as Gavin Tom Pickett as Lt. Danny Gunderson Co Starring Peter Benson as Lt. Walter Kelly Richard Dietl as Patient / Spirit Nicole LaPlaca as Patient / Spirit James Purcell as Dr. James Ellicott Nancy Bell as Female Patient / Spirit Norman Armour as Dr. Sanford Ellicott Karly Warkentin as Kelly's Wife Roy Campsall as Patient / Spirit Leif Bridgman as Patient / Spirit Johnston Gray as Patient / Spirit